The Billit API supports multiple identifiers from multiple countries. A list can be found below.

Country	Identifier	Identifier definition
BE/EU	VAT	VAT number
NL	KVK	KVK number
NL	OIN	OIN number
LU	RPM	Identity number of the register of legal persons
International	GLN	GLN number
International	DUNS	DUNS number
IT	SDICODDEST	The channel id of the service provider (Destination Code)
IT	SDICODFIS	The Fiscal Code Number (Codice Fiscale)
IT	SDIPEC	The PEC e-mail address
IT	SDIB2G	The unique identifier of the Italian government agency
DE	LEITWEGID	Identification of public organizations
FR	SIRET	The unique SIRET number given out by the government
FR	SIRENE	The unique French business identification number
FR	Service Code	The Service number of the entity

Usage

You are allowed to add the following piece of code in any party Object.

"Identifiers": [
    {
      "IdentifierType": "SDIPEC",
      "Identifier": "[email protected]"
    }
  ]

"Identifiers": [
  { "IdentifierType": "SDICODFIS", "Identifier": "" },
  { "IdentifierType": "SDICODDEST", "Identifier": "3PRL4IK" },
  { "IdentifierType": "SDIPEC", "Identifier": "[email protected]" }
]